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iswctype(3) [debian man page]

ISWCTYPE(3)						     Linux Programmer's Manual						       ISWCTYPE(3)

NAME
iswctype - wide-character classification SYNOPSIS
#include <wctype.h> int iswctype(wint_t wc, wctype_t desc); DESCRIPTION
If wc is a wide character having the character property designated by desc (or in other words: belongs to the character class designated by desc), the iswctype() function returns nonzero. Otherwise it returns zero. If wc is WEOF, zero is returned. desc must be a character property descriptor returned by the wctype(3) function. RETURN VALUE
The iswctype() function returns nonzero if the wc has the designated property. Otherwise it returns 0. CONFORMING TO
C99. NOTES
The behavior of iswctype() depends on the LC_CTYPE category of the current locale. SEE ALSO
iswalnum(3), iswalpha(3), iswblank(3), iswcntrl(3), iswdigit(3), iswgraph(3), iswlower(3), iswprint(3), iswpunct(3), iswspace(3), iswup- per(3), iswxdigit(3), wctype(3) COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. GNU
1999-07-25 ISWCTYPE(3)

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iswctype(3C)						   Standard C Library Functions 					      iswctype(3C)

NAME
iswctype - test character for specified class SYNOPSIS
#include <wchar.h> int iswctype(wint_t wc, wctype_t charclass); DESCRIPTION
The iswctype() function determines whether the wide-character code wc has the character class charclass, returning TRUE or FALSE. The iswc- type() function is defined on WEOF and wide-character codes corresponding to the valid character encodings in the current locale. If the wc argument is not in the domain of the function, the result is undefined. If the value of charclass is invalid (that is, not obtained by a call to wctype(3C) or charclass is invalidated by a subsequent call to setlocale(3C) that has affected category LC_CTYPE), the result is indeterminate. RETURN VALUES
The iswctype() function returns 0 for FALSE and non-zero for TRUE. USAGE
There are twelve strings that are reserved for the standard character classes: | | "alnum" |"alpha" | "blank" --------------------+--------------------+-------------------- "cntrl" |"digit" | "graph" --------------------+--------------------+-------------------- "lower" |"print" | "punct" --------------------+--------------------+-------------------- "space" |"upper" | "xdigit" In the table below, the functions in the left column are equivalent to the functions in the right column. iswalnum(wc) iswctype(wc, wctype("alnum")) iswalpha(wc) iswctype(wc, wctype("alpha")) iswcntrl(wc) iswctype(wc, wctype("cntrl")) iswdigit( wc) iswctype(wc, wctype("digit")) iswgraph(wc) iswctype(wc, wctype("graph")) iswlower(wc) iswctype(wc, wctype("lower")) iswprint(wc) iswctype(wc, wctype("print")) iswpunct(wc) iswctype( wc, wctype("punct")) iswspace(wc) iswctype(wc, wctype("space")) iswupper(wc) iswctype(wc, wctype("upper")) iswxdigit(wc) iswctype(wc, wctype("xdigit")) The call iswctype(wc, wctype("blank")) does not have an equivalent isw*() function. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ |ATTRIBUTE TYPE |ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe with exceptions | +-----------------------------+-----------------------------+ SEE ALSO
iswalpha(3C), setlocale(3C), wctype(3C), attributes(5), environ(5), standards(5) SunOS 5.11 24 Jul 2002 iswctype(3C)

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